Display panel and spliced display

ABSTRACT

A display panel and a spliced display are provided. The display panel includes a substrate, a plurality of light-emitting elements, a driving circuit, and an optical sensor. The substrate includes a through hole, and the through hole includes a hole. The plurality of the light-emitting elements are disposed on the substrate. The through hole is located in a region between two of the plurality of the light-emitting elements. The driving circuit is disposed on the substrate and electrically connected to the plurality of the light-emitting elements. The optical sensor is disposed corresponding to the through hole and receives sensing light through the hole. The width W of the hole meets the equation of H≤W&lt;D. H is the depth of the hole, and D is the distance between the two of the plurality of the light-emitting elements.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the priority benefit of U.S. provisionalapplication Ser. No. 63/031,581, filed on May 29, 2020, and Chinaapplication serial no. 202011504933.6, filed on Dec. 18, 2020. Theentirety of each of the above-mentioned patent applications is herebyincorporated by reference herein and made a part of this specification.

BACKGROUND Technical Field

The disclosure relates to an electronic device, and particularly, to adisplay panel and a spliced display.

Description of Related Art

With the advancement of technology, electronic devices (e.g., displaydevices) are evolving toward more functions and getting thinner andlighter. Technologies to connect an external camera lens to a displayscreen are proposed. However, the circuit configuration of theperipheral area of a panel and the user experience of a display devicestill need to be optimized. Moreover, in large-scale display devices,the external camera lens may not meet the usage requirements. Therefore,the current display device still has room for improvement.

SUMMARY

The disclosure provides a display panel and a spliced displaycontributing to improving at least one of shortcomings of an externalcamera lens.

According to an embodiment of the disclosure, a display panel includes asubstrate, a plurality of light-emitting elements, a driving circuit,and an optical sensor. The substrate includes a through hole, and thethrough hole includes a hole. The plurality of the light-emittingelements are disposed on the substrate. The through hole is located in aregion between two of the plurality of the light-emitting elements. Thedriving circuit is disposed on the substrate and electrically connectedto the plurality of the light-emitting elements. The optical sensor isdisposed corresponding to the through hole and receives sensing lightthrough the hole. A width W of the hole meets the equation of H≤W<D. His a depth of the hole, and D is a distance between the two of theplurality of the light-emitting elements.

According to an embodiment of the disclosure, a spliced display includesat least one display panel described.

In order to make the features and advantages of the disclosurecomprehensible, embodiments accompanied with drawings are described indetail below.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are included to provide a furtherunderstanding of the invention, and are incorporated in and constitute apart of this specification. The drawings illustrate embodiments of thedisclosure and, together with the description, serve to explain theprinciples of the disclosure.

FIG. 1 is a schematic cross-sectional view of part of a display panelaccording to some embodiments of the disclosure.

FIG. 2 to FIG. 5 are various enlarged schematic views of part of theregion X in FIG. 1.

FIG. 6 to FIG. 8 are various schematic top views of the display panel inFIG. 1.

FIG. 9 is a schematic view of a spliced display according to someembodiments of the disclosure.

FIG. 10 is a schematic view of another spliced display according to someembodiments of the disclosure.

DESCRIPTION OF THE EMBODIMENTS

The disclosure will be described in detail with reference to theaccompanying drawings. It is noted that for comprehension of the readerand simplicity of the drawings, in the drawings of the disclosure, onlya part of the electronic device/the display device is shown, andspecific components in the drawings are not necessarily drawn to scale.Moreover, the quantity and the size of each component in the drawingsare only schematic and are not intended to limit the scope of thedisclosure. For example, for clarity, a relative size, a thickness, anda location of each film layer, region, and/or structure may be reducedor enlarged.

Throughout the specification and the appended claims of the disclosure,certain terms are used to refer to specific components. Those skilled inthe art should understand that electronic device manufacturers mayprobably use different names to refer to the same components. Thisspecification is not intended to distinguish between components thathave the same function but different names. In the followingspecification and claims, the terms “including” and “having”, etc., areopen-ended terms, so they should be interpreted to mean “including butnot limited to . . . ”.

Directional terminology mentioned in the specification, such as “top”,“bottom”, “front”, “back”, “left”, “right”, etc., is used with referenceto the orientation of the drawings being described. Therefore, the useddirectional terminology is only intended to illustrate, rather thanlimit, the disclosure. It should be understood that when an element orlayer is referred to as being “on” or “connected to” another element orlayer, it can be directly set on said other element or layer or directlyconnected to said other element or layer, or there is an interveningelement or layer between the two (indirect connection). In contrast,when an element is referred to as being “directly on” or “directlyconnected to” another element or layer, there are no interveningelements or layers between the two.

The terms such as “about”, “equal”, “same”, “substantially”, or“approximately” are generally interpreted as being within a range ofplus or minus 10% of a given value or range, or as being within a rangeof plus or minus 5%, plus or minus 3%, plus or minus 2%, plus or minus1%, or plus or minus 0.5% of the given value or range. In addition, theterm “a given range is between the first value and the second value” orthe term “a given value falls in the range between the first value andthe second value”, both mean the given range includes the first value,the second value, and values between the two values.

In some embodiments of the disclosure, terms such as “connect” and“interconnect” with respect to bonding and connection, unlessspecifically defined, may refer to two structures that are in directcontact with each other, or may refer to two structures that areindirectly in contact with each other, wherein there are otherstructures set between these two structures. In addition, the terms thatdescribe joining and connecting may apply to the case where bothstructures are movable or both structures are fixed. In addition, theterm “electrically connected” or “coupling” involves any direct andindirect electrical connection means.

In the exemplary embodiments provided herein, the same or similarelements will be given the same or similar reference numerals and theirdescription will be omitted. In addition, the features in the differentexemplary embodiments may be combined with each other as long as thereis no conflict, and equivalent changes and modifications made accordingto the specification or claims are still within the scope of thisdisclosure. Moreover, “first”, “second”, and similar terms mentioned inthe specification or the claims are merely used to name the discreteelements or to differentiate among different embodiments or ranges.Therefore, the terms should not be regarded as limiting the upper orlower bound of the number of the components/devices and should not beused to limit the manufacturing sequence or arrangement sequence ofcomponents.

The electronic device in the disclosure may include a display device, anantenna device, a sensing device, a light-emitting device, or a splicingdevice, but the disclosure is not limited thereto. The electronic devicemay be a bendable or flexible electronic device. The electronic devicemay, for example, include light-emitting diodes (LEDs). Thelight-emitting diodes may include, for example, organic light-emittingdiodes (OLEDs), mini LEDs, micro LEDs, or quantum dot light-emittingdiodes (including QLEDs and QDLEDs), fluorescence, phosphors, othersuitable materials, or a combination thereof, but the disclosure is notlimited thereto. A display device is configured as an electronic deviceto illustrate the content of the disclosure in the following, but thedisclosure is not limited thereto.

The display device of the disclosure may be a self-luminous displaydevice, for example. The self-luminous display device may include alight-emitting diode, a light conversion layer or other suitablematerials, or a combination thereof, but the disclosure is not limitedthereto. The light-emitting diode may, for example, include organiclight-emitting diodes (OLEDs), mini light-emitting diode (mini LEDs),micro LEDs or quantum dot LEDs (including QLEDs and QDLEDs), but thedisclosure is not limited thereto. The light conversion layer mayinclude a wavelength conversion material and/or a light filteringmaterial. The light conversion layer may include, for example,fluorescence, phosphors, quantum dots, other suitable materials, or acombination thereof, but the disclosure is not limited thereto. Thedisplay panel in the display device will be described with accompanyingdrawings, and the spliced display will be adapted as the display deviceto illustrate the content of the disclosure. However, the display devicein the disclosure may also be a non-spliced display.

FIG. 1 is a schematic cross-sectional view of part of a display panelaccording to some embodiments of the disclosure. FIG. 2 to FIG. 5 arevarious enlarged schematic views of part of the region X in FIG. 1.

Referring to FIG. 1 and FIG. 2 first, a display panel 100 is aself-luminous display panel. The self-luminous display panel may includea light-emitting diode display panel, but the disclosure is not limitedthereto. The display panel 100 may be a display panel embedded with animage capturing device. For example, one or more image capturing devicesmay be embedded in the display panel 100. According to differentrequirements, while obtaining an image of the subject, the display panel100 displays the obtained image, but the disclosure is not limitedthereto.

In detail, the display panel 100 includes a substrate 110, the pluralityof the light-emitting elements 120, a driving circuit 130, and anoptical sensor 140. The substrate 110 includes a rigid substrate or aflexible substrate and may also include a film-like substrate withflexibility, but the disclosure is not limited thereto. For example, thesubstrate 110 may include a printed circuit board, a plastic substrate,a glass substrate, or a composite substrate. For example, compositeboards include polyimide (PI) and printed circuit boards, compositeboards include polyimide and polyethylene terephthalate (PET), or thelike, but the disclosure is not limited thereto. The plurality of thelight-emitting elements 120 may include light-emitting diodes. Thelight-emitting diode, for example, may include organic light-emittingdiodes (OLEDs), mini light-emitting diodes (mini LEDs), microlight-emitting diodes (micro LEDs), or quantum dot light-emitting diodes(quantum dot LEDs, including QLEDs and QDLEDs), fluorescence, phosphor,other suitable materials, or a combination thereof, but the disclosureis not limited thereto. The driving circuit 130 may include one or moreintegrated circuits, but the disclosure is not limited thereto. Theoptical sensor 140 includes a camera module or a fingerprint recognitionmodule and may also include an infrared camera, a thermal imager, orother image capturing devices providing functions of ranging, positionrecognition, or identification, but the disclosure is not limitedthereto. In some embodiments, the optical sensor 140 may include acharge-coupled device (CCD) or a CMOS image sensor (CIS), such as frontside illuminated (FSI) CIS, back side illuminated (BSI) CIS, etc., toreceive sensing light, but the disclosure is not limited thereto.

The substrate 110 has a surface S1 and another surface S2 opposite tothe surface S1. In addition, the substrate 110 includes a through holeT1. The through hole T1 penetrates the surface S1 and the surface S2 ofthe substrate 110. In other words, the through hole T1 extends from thesurface S1 to the surface S2.

The plurality of the light-emitting elements 120 are disposed on thesubstrate 110, and the plurality of the light-emitting elements 120, forexample, are disposed on the surface S1 of the substrate 110. Thethrough hole T1, for example, is located in a region A between two(e.g., the light-emitting element 120 a and the light-emitting element120 b) of the plurality of the light-emitting elements.

The driving circuit 130 is disposed on the substrate 110 andelectrically connected to the plurality of the light-emitting elements120. The driving circuit 130 controls the plurality of thelight-emitting elements 120 to display images. The driving circuit 130is disposed on the surface S1 of the substrate 110 or disposed on thesurface S2 of the substrate 110 to reduce its influence on the visualeffect, but the disclosure is not limited thereto. In some embodiments,the driving circuit 130 may be disposed on the surface S1 of thesubstrate 110.

The optical sensor 140 is disposed corresponding to the through hole T1and receives sensing light through the through hole T1. As shown in FIG.1 and FIG. 2, for example, the through hole T1 penetrates the part ofthe substrate 110 located in the region A, and for example the opticalsensor 140 is embedded in the through hole T1 of the substrate 110 toobtain image data of the object to be photographed by receiving sensinglight.

With the optical sensor 140 disposed in the display region (e.g., theregion between the light-emitting element 120 a and the light-emittingelement 120 b) of the display panel 100, the space waste and theaffected appearance caused by the external camera lens are improved, ortechnical problems, such as failing to directly look at the screen andthe image capturing device at the same time while the users use theimage capturing device, are solved.

Referring to FIG. 2, in the display panel 100, the through hole T1 is acomposite through hole, but the disclosure is not limited thereto. Forexample, the through hole T1 includes a part T1 b where the opticalsensor is disposed and a hole part (a hole T1 a) of the optical sensor140 is exposed. The hole T1 a is connected to the surface S1 of thesubstrate 110 and is located between the surface S1 and the part T1 bwhere the optical sensor is disposed. The part T1 b where the opticalsensor is disposed is connected to the surface S2 of the substrate 110and is located between the surface S2 and the hole T1 a. The opticalsensor 140 is disposed in the part T1 b where the optical sensor isdisposed, the hole T1 a exposes the optical sensor 140, and the sensinglight is transmitted to the optical sensor 140 through the hole T1 a sothat the optical sensor 140 obtains image data of the object to bephotographed. In some embodiments, the part T1 b where the opticalsensor is disposed may be designed according to the size of the opticalsensor 140 and may have an aperture greater than that of the hole T1 a,but the disclosure is not limited thereto.

In the embodiment of the disclosure, when taking the image capturingeffect into consideration, a width W of the hole T1 a meets thefollowing equation: H≤W<D. For example, the width W of the hole T1 arefers to the maximum width of the through hole T1 in a directionparallel to the substrate 110 on the surface (e.g., the surface S1) ofthe substrate 110 where the plurality of the light-emitting elements 120are disposed. In FIG. 2, for example, the width W of the hole T1 a isthe maximum width in the direction parallel to the substrate 110 on thesurface S1. H is the depth of the hole T1 a, for example, the distancefrom the surface (e.g., surface S1) of the substrate 110 where theplurality of the light-emitting elements 120 are disposed to the surface(e.g., an upper surface S3) of the optical sensor 140 in a directionperpendicular to the substrate 110. D is the distance between thelight-emitting element 120 a and the light-emitting element 120 b, forexample, the minimum distance between the light-emitting element 120 aand the light-emitting element 120 b in the direction parallel to thesubstrate 110.

In some embodiments of the disclosure, the optical sensor 140 may be acamera module. For example, the optical sensor 140 may include a lens1401 and a housing 1402 to carry the lens 1401. In some embodiments, ifa width B of the housing 1402 of the optical sensor 140 is greater thana distance D between the light-emitting element 120 a and thelight-emitting element 120 b, with the design of the composite throughhole, at least part of the housing 1402 is embedded in the part T1 bwhere the optical sensor is disposed in the substrate 110. Accordingly,the optical sensor 140 is fixed in the substrate 110 without increasingthe distance D. In other embodiments, the optical sensor 140 may alsoadopt other structural configurations, which is not limited in thedisclosure.

Referring to FIG. 3, in a display panel 100A, the substrate 110 includesa through hole T2. The through hole T2 includes a part T2 b where theoptical sensor is disposed and a hole part (a hole T2 a) where theoptical sensor 140 is exposed. The through hole T2 is a single throughhole, and the hole T2 a in the through hole T2 and the part T2 b wherethe optical sensor is disposed have a single aperture. A width B′ ofpart of the housing 1402 of the optical sensor 140 is less than thedistance D between the light-emitting element 120 a and thelight-emitting element 120 b. Therefore, with the design of a singlethrough hole, the housing 1402 is embedded in the through hole T2 of thesubstrate 110, but the disclosure is not limited thereto. In FIG. 3, thedepth of the hole is the distance from the surface S1 to the uppersurface S3 of the optical sensor 140 (the defined H), and for example,the depth is 0.

Referring to FIG. 4, in a display panel 100B, the substrate 110 includesa through hole T3. The through hole T3 includes a part T3 b where theoptical sensor is disposed and a hole part (a hole T3 a) where theoptical sensor 140 is exposed. The through hole T3 is a single throughhole, and the hole T3 a in the through hole T3 and the part T3 b wherethe optical sensor is disposed have a single aperture. In someembodiments, a larger distance D′ exists between the light-emittingelement 120 a and the light-emitting element 120 b (e.g., the displaypanel 100B has a larger pixel pitch or a lower resolution than that ofthe display panel 100), and the distance D′ is greater than the width Bof the housing 1402 of the optical sensor 140. Therefore, in the displaypanel 100B, the through hole T3 with a larger aperture is disposedbetween the light-emitting element 120 a and the light-emitting element120 b, and with the housing 1402 disposed in the through hole T3, theoptical sensor 140 is disposed corresponding to the through hole T3, butthe disclosure is not limited thereto. In FIG. 4, the depth of the holeis the distance from the surface S1 to the upper surface S3 of theoptical sensor 140 (the defined H), and for example, the depth is 0.

Referring to FIG. 5, in a display panel 100C, the optical sensor 140 hasa viewing angle θ, where the viewing angle θ may fall within a range of±10% of 180−[2×tan⁻¹(H/D)], for example. In other words, a distance Hfrom the surface S1 to the upper surface S3 of the optical sensor 140and the distance D between the light-emitting element 120 a and thelight-emitting element 120 b may be designed according to the lightcollection capability (the viewing angle θ) of the optical sensor 140.

FIG. 6 to FIG. 8 are various schematic top views of the display panel inFIG. 1. Referring to FIG. 6 first, the display panel 100 includes theplurality of the light-emitting elements 120 disposed on the surface S1of the substrate 110. The plurality of the light-emitting elements 120are disposed in an array in a direction parallel to the substrate 110(e.g., a first direction D1 and a second direction D2). The seconddirection D2 intersects the first direction D1, and for example, thesecond direction D2 may be perpendicular to the first direction D1, butthe disclosure is not limited thereto. The first direction D1 may be ahorizontal direction when the users face the display panel 100. Thesecond direction D2 may be a vertical direction when the users face thedisplay panel 100.

As shown in FIG. 6, in the display panel 100, the through hole T1 islocated in a region between two (e.g., the light-emitting element 120 aand the light-emitting element 120 b) of the plurality of thelight-emitting elements 120. For example, the light-emitting element 120a and the light-emitting element 120 b are adjacent light-emittingelements 120 in a diagonal direction D3. The diagonal direction D3 is adiagonal direction between the first direction D1 and the seconddirection D2. For example, the through hole T1 may be located in theregion among the four light-emitting elements 120. Alternatively, thethrough hole T1 may be located in the region among six, eight, or morelight-emitting elements 120.

Referring to FIG. 7, in a display panel 100D, a through hole T4 islocated in a region between two (e.g., the light-emitting element 120 aand the light-emitting element 120 b) of the plurality of thelight-emitting elements 120. For example, the light-emitting element 120a and the light-emitting element 120 b are adjacent light-emittingelements 120 in the horizontal direction (e.g., the first direction D1).

Referring to FIG. 8, in a display panel 100E, a through hole T5 islocated in a region between two (e.g., the light-emitting element 120 aand the light-emitting element 120 b) of the plurality of thelight-emitting elements 120. For example, the light-emitting element 120a and the light-emitting element 120 b are adjacent light-emittingelements 120 in the vertical direction (e.g., the second direction D2).

FIG. 9 is a schematic view of a spliced display according to someembodiments of the disclosure. Referring to FIG. 9, a spliced display10A includes a plurality of display panels DP. In some embodiments, someof the plurality of the display panels DP in the spliced display 10A mayhave driving circuits electrically coupled to one another, so that someof the plurality of the display panels DP in the spliced display 10Acooperatively display the entire or the corresponding images.

As shown in FIG. 9, the spliced display 10A may include at least twodisplay panels 100 as shown in FIG. 1, FIG. 2, and FIG. 6. Through theoptical sensor 140, the spliced display 10A obtains image data of theobject to be photographed. The spliced display 10A may also include thedisplay panel 100A of FIG. 3, the display panel 100B of FIG. 4, thedisplay panel 100C of FIG. 5, the display panel 100D of FIG. 7, thedisplay panel 100E of FIG. 8, or a combination thereof. The disclosureis not limited thereto.

The spliced display 10A may include one optical sensor 140 or multipleoptical sensors 140. The spliced display 10A may include a plurality ofdisplay panels including optical sensors 140, and may also include adisplay panel including a plurality of optical sensors 140. Theplurality of the optical sensors 140 may be respectively disposed indifferent display panels DP, or the plurality of the optical sensors 140may be disposed on one display panel DP. The spliced display 10A mayalso include a display panel without the optical sensor 140, which isnot limited in the disclosure. The plurality of the optical sensors 140provides multiple shooting angles and a wider shooting range. Forexample, the spliced display 10A may include an optical sensor 140 a, anoptical sensor 140 b, and an optical sensor 140 c; and the opticalsensor 140 a, the optical sensor 140 b, and the optical sensor 140 cobtain image data in a range Va, a range Vb, and a range Vc,respectively. Therefore, the optical sensor 140 a, the optical sensor140 b, and the optical sensor 140 c respectively track and photographobjects to be photographed in different regions.

FIG. 10 is a schematic view of another spliced display according to someembodiments of the disclosure. Referring to FIG. 10, a spliced display10B is ring-shaped and includes a plurality of display panels DP. Theplurality of the display panels DP may include one or more curveddisplay panels, but the disclosure is not limited thereto. FIG. 10 showsthe spliced display 10B disposed inside the ring. However, in otherembodiments, the spliced display may also be disposed outside the ringor disposed in other shapes, and this disclosure is not limited thereto.In some embodiments, some of the plurality of the display panels DP inthe spliced display 10B may have driving circuits electrically coupledto one another, so that some of the plurality of the display panels DPof the spliced display 10B cooperatively display the entire or thecorresponding images.

As shown in FIG. 10, the spliced display 10B includes at least onedisplay panel 100 as shown in FIG. 1, FIG. 2, and FIG. 6. Through theoptical sensor 140, the spliced display 10B obtains image data of anobject O to be photographed. The spliced display 10B may also includethe display panel 100A of FIG. 3, the display panel 100B of FIG. 4, thedisplay panel 100C of FIG. 5, the display panel 100D of FIG. 7, thedisplay panel 100E of FIG. 8, or a combination thereof, but thedisclosure is not limited thereto.

The spliced display 10B may include one optical sensor 140 or aplurality of optical sensors 140. The spliced display 10B may include aplurality of display panels including optical sensors 140 or may alsoinclude a display panel including a plurality of optical sensors 140.The plurality of the optical sensors 140 may be respectively disposed indifferent display panels, or the plurality of the optical sensors 140may be disposed on one display panel. The spliced display 10B may alsoinclude a display panel without the optical sensor 140, which is notlimited in the disclosure. The plurality of the optical sensors 140provide multiple shooting angles and a wider shooting range. Forexample, the plurality of the optical sensors 140 of the spliced display10B obtain a three-dimensional image of the object O to be photographed,and it is possible to further combine the obtained three-dimensionalimage with the display image of the spliced display 10B to present realtime virtual reality images. In some embodiments, a spliced displayincluding an optical sensor may also integrate a signage system with amonitoring system.

Based on the above, in the embodiments of the disclosure, with anoptical sensor disposed in the display region (e.g., the region betweentwo light-emitting elements) of a display panel or that of a spliceddisplay, the space waste and the affected appearance caused by theexternal camera lens are improved, or technical problems, such asfailing to directly look at the screen and the image capturing device atthe same time while the users use the image capturing device, aresolved, thereby further contributing to optimizing the circuitconfiguration of the peripheral area of the panel and the userexperience.

It will be apparent to those skilled in the art that variousmodifications and variations can be made to the structure of the presentinvention without departing from the scope or spirit of the invention.In view of the foregoing, it is intended that the present inventioncover modifications and variations of this invention provided they fallwithin the scope of the following claims and their equivalents.

Although the disclosure has been described with reference to the aboveembodiments and the features, it will be apparent to one of ordinaryskill in the art that modifications and changes to the describedembodiments may be made without departing from the spirit and the scopeof the disclosure. In addition, the protection scope of the disclosureis not limited to the manufacturing processes, machines, manufacturing,material composition, devices, methods, and steps in the specificembodiments of the specification. Any skilled in the art can understandthe current or future development processes, machines, manufacturing,material composition, devices, methods, and steps from the content ofthe disclosure, and as long as the substantially same functions can beimplemented in the embodiments described herein or the substantiallysame results can be obtained, they can be used according to thedisclosure. Therefore, the protection scope of the disclosure includesthe above manufacturing processes, machines, manufacturing, materialcomposition, devices, methods, and steps. In addition, each claimconstitutes an individual embodiment, and the protection scope of thedisclosure also includes the combination of each claim and embodiment.The protection scope of the disclosure shall be defined by the appendedclaims.

What is claimed is:
 1. A display panel, comprising: a substratecomprising a through hole, wherein the through hole comprises a hole; aplurality of light-emitting elements disposed on the substrate, whereinthe through hole is located in a region between two of the plurality ofthe light-emitting elements; a driving circuit disposed on the substrateand electrically connected to the plurality of the light-emittingelements; and an optical sensor disposed corresponding to the throughhole and receiving sensing light through the hole; wherein a width W ofthe hole meets a following equation:H≤W<D, wherein H is a depth of the hole, and D is a distance between thetwo of the plurality of the light-emitting elements.
 2. The displaypanel according to claim 1, wherein the two of the plurality of thelight-emitting elements are adjacent light-emitting elements in adiagonal direction.
 3. The display panel according to claim 1, whereinthe two of the plurality of the light-emitting elements are adjacentlight-emitting elements in a horizontal direction.
 4. The display panelaccording to claim 1, wherein the two of the plurality of thelight-emitting elements are adjacent light-emitting elements in avertical direction.
 5. The display panel according to claim 1, whereinthe optical sensor is a camera module.
 6. The display panel according toclaim 1, wherein a width of a housing of the optical sensor is greaterthan a distance D between the two of the plurality of the light-emittingelements, the through hole further comprises a part where the opticalsensor is disposed, the optical sensor is disposed in the part where theoptical sensor is disposed, and the hole exposes the optical sensor. 7.The display panel according to claim 6, wherein H is greater than zero.8. The display panel according to claim 7, wherein a viewing angle θ ofthe optical sensor meets a following equation:180−[2×tan⁻¹(H/D)].
 9. The display panel according to claim 1, wherein awidth of a housing of the optical sensor is less than a distance Dbetween the two of the plurality of the light-emitting elements, thethrough hole further comprises a part where the optical sensor isdisposed, the optical sensor is disposed in the part where the opticalsensor is disposed, and the hole exposes the optical sensor.
 10. Thedisplay panel according to claim 9, wherein H is zero.
 11. A spliceddisplay, comprising at least two display panels of claim
 1. 12. Thespliced display according to claim 11, wherein the two of the pluralityof the light-emitting elements are adjacent light-emitting elements in adiagonal direction.
 13. The spliced display according to claim 11,wherein the two of the plurality of the light-emitting elements areadjacent light-emitting elements in a horizontal direction.
 14. Thespliced display according to claim 11, wherein the two of the pluralityof the light-emitting elements are adjacent light-emitting elements in avertical direction.
 15. The spliced display according to claim 11,wherein the optical sensor is a camera module.
 16. The spliced displayaccording to claim 11, wherein a width of a housing of the opticalsensor is greater than a distance D between the two of the plurality ofthe light-emitting elements, the through hole further comprises a partwhere the optical sensor is disposed, the optical sensor is disposed inthe part where the optical sensor is disposed, and the hole exposes theoptical sensor.
 17. The spliced display according to claim 16, wherein His greater than zero.
 18. The spliced display according to claim 17,wherein a viewing angle θ of the optical sensor meets a followingequation:180−[2×tan⁻¹(H/D)].
 19. The spliced display according to claim 11,wherein a width of a housing of the optical sensor is less than adistance D between the two of the plurality of the light-emittingelements, the through hole further comprises a part where the opticalsensor is disposed, the optical sensor is disposed in the part where theoptical sensor is disposed, and the hole exposes the optical sensor. 20.The spliced display according to claim 19, wherein H is zero.